Patent attributes
Included are: a coaxial line (10) provided so as to pass through a second ground conductor (6), a first dielectric substrate (8), and a second dielectric substrate (9), the coaxial line (10) including an outer conductor (11) allowing a first ground conductor (1), a second ground conductor (6), and a third ground conductor (7) to be conductive thereamong; and a conductive member (15) provided so as to pass through the first dielectric substrate (8), the conductive member (15) allowing the first ground conductor (1) and the second ground conductor (6) to be conductive therebetween. An interface circuit (18) combines a plurality of signals having mutually different phases output from each of plurality of element antennas (3a), (3b), (3c), and (3d) and outputs the combined signal to the coaxial line (10).
